ファイルを直接開くことはできません。ただし、ソケットを使用してコンテンツをフェッチすることはできます。
function getRemoteFile($url)
{
// get the host name and url path
$parsedUrl = parse_url($url);
$host = $parsedUrl['host'];
if (isset($parsedUrl['path'])) {
$path = $parsedUrl['path'];
} else {
// the url is pointing to the host like http://www.mysite.com
$path = '/';
}
if (isset($parsedUrl['query'])) {
$path .= '?' . $parsedUrl['query'];
}
if (isset($parsedUrl['port'])) {
$port = $parsedUrl['port'];
} else {
// most sites use port 80
$port = '80';
}
$timeout = 10;
$response = '';
// connect to the remote server
$fp = @fsockopen($host, '80', $errno, $errstr, $timeout );
if( !$fp ) {
echo "Cannot retrieve $url";
} else {
// send the necessary headers to get the file
fputs($fp, "GET $path HTTP/1.0\r\n" .
"Host: $host\r\n" .
"User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3\r\n" .
"Accept: */*\r\n" .
"Accept-Language: en-us,en;q=0.5\r\n" .
"Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n" .
"Keep-Alive: 300\r\n" .
"Connection: keep-alive\r\n" .
"Referer: http://$host\r\n\r\n");
// retrieve the response from the remote server
while ( $line = fread( $fp, 4096 ) ) {
$response .= $line;
}
fclose( $fp );
// strip the headers
$pos = strpos($response, "\r\n\r\n");
$response = substr($response, $pos + 4);
}
// return the file content
return $response;
}
例:
$content = getRemoteFile('http://www.allamoda.eu/wp-content/uploads/2012/05/calzedonia_290x435.jpg');
ソース